How to change the rules for determining the first week of the year in WinUI Calendar Date Range Picker (SfCalendarDateRangePicker)
In the WinUI CalendarDateRangePicker (SfCalendarDateRangePicker), you can change the first week of the year in month views using the WeekNumberRule property.
FirstDay - The first week of the year starts on the first day of the year.
FirstFourDayWeek - The first week should have at least four days.
FirstFullWeek - The first week should have all seven days.
XAML:
<Window x:Class=" WeekRule.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="using:WeekRule" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" xmlns:calendar="using:Syncfusion.UI.Xaml.Calendar" xmlns:editors="using:Syncfusion.UI.Xaml.Editors"> <calendar:SfCalendarDateRangePicker x:Name="sfCalendarDateRangePicker" VerticalAlignment="Top" Height="30" Width="250" ShowWeekNumbers="True" WeekNumberRule="FirstFullWeek" /> </Window>
